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- /* ====================================================================
- * The Apache Software License, Version 1.1
- *
- * Copyright (c) 2001 The Apache Software Foundation. All rights
- * reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. The end-user documentation included with the redistribution,
- * if any, must include the following acknowledgment:
- * "This product includes software developed by the
- * Apache Software Foundation (http://www.apache.org/)."
- * Alternately, this acknowledgment may appear in the software itself,
- * if and wherever such third-party acknowledgments normally appear.
- *
- * 4. The names "Apache" and "Apache Software Foundation" and
- * "Apache BCEL" must not be used to endorse or promote products
- * derived from this software without prior written permission. For
- * written permission, please contact apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache",
- * "Apache BCEL", nor may "Apache" appear in their name, without
- * prior written permission of the Apache Software Foundation.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Software Foundation. For more
- * information on the Apache Software Foundation, please see
- * <http://www.apache.org/>.
- */
- package org.aspectj.apache.bcel.generic;
-
- import java.io.DataOutputStream;
- import java.io.IOException;
-
- import org.aspectj.apache.bcel.Constants;
- import org.aspectj.apache.bcel.util.ByteSequence;
-
- /**
- * TABLESWITCH - Switch within given range of values, i.e., low..high
- *
- * @version $Id: TABLESWITCH.java,v 1.5 2008/08/28 00:05:29 aclement Exp $
- * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
- * @see SWITCH
- */
- public class TABLESWITCH extends InstructionSelect {
-
- /**
- * @param match sorted array of match values, match[0] must be low value, match[match_length - 1] high value
- * @param targets where to branch for matched values
- * @param target default branch
- */
- public TABLESWITCH(int[] match, InstructionHandle[] targets, InstructionHandle target) {
- super(org.aspectj.apache.bcel.Constants.TABLESWITCH, match, targets, target);
-
- // if (match_length==0) {
- // throw new RuntimeException("A tableswitch with no targets should be represented as a LOOKUPSWITCH");
- // }
-
- // Alignment remainder assumed 0 here, until dump time
- length = (short) (13 + matchLength * 4);
- fixedLength = length;
- }
-
- /**
- * Dump instruction as byte code to stream out.
- *
- * @param out Output stream
- */
- public void dump(DataOutputStream out) throws IOException {
- super.dump(out);
-
- int low = matchLength > 0 ? match[0] : 0;
- out.writeInt(low);
-
- int high = matchLength > 0 ? match[matchLength - 1] : 0;
- out.writeInt(high);
-
- // See aj bug pr104720
- // if (match_length==0) out.writeInt(0); // following the switch you need to supply "HIGH-LOW+1" entries
-
- for (int i = 0; i < matchLength; i++) {
- out.writeInt(indices[i] = getTargetOffset(targets[i]));
- }
- }
-
- /**
- * Read needed data (e.g. index) from file.
- */
- public TABLESWITCH(ByteSequence bytes) throws IOException {
- super(Constants.TABLESWITCH, bytes);
-
- int low = bytes.readInt();
- int high = bytes.readInt();
-
- matchLength = high - low + 1;
- fixedLength = (short) (13 + matchLength * 4);
- length = (short) (fixedLength + padding);
-
- match = new int[matchLength];
- indices = new int[matchLength];
- targets = new InstructionHandle[matchLength];
-
- for (int i = 0; i < matchLength; i++) {
- match[i] = low + i;
- }
-
- for (int i = 0; i < matchLength; i++) {
- indices[i] = bytes.readInt();
- }
- }
-
- }
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